baber/WOPTO huggingface dataset:
Patent GB-1051579-A (GB)
IPC: C08G59/28
Abstract: 1,051,579. Epoxy-polyamides. BORDEN CO. Nov. 26, 1964, No. 48136/64. Headings C3B and C3R. A water soluble thermosetting resin is prepared by interacting (a) a polyamide having the recurring unit where n=2-10, x = 0-6 and R is a C 2 -C 6  alkylene radical derived from an aliphatic C 3 -C 7  monocarboxylic acid having an oleflnic bond on the α-carbon atom and (b) 0À5-1À8 moles per amine group in the polyamide of an epoxidizing agent which is a chlorohydrin or diglycidyl ether of a polyhydric organic compound having 2-8 carbon atoms. The polyamide may be prepared by heating a 0À2-3 moles of an acrylic ester with 1 mole of a polyamine at - 20‹ to 40‹ C. in a polar medium which is then distilled off. Unsaturated esters specified are methyl, ethyl, propyl, butyl, phenyl, cresyl, xylyl and benzyl acrylates, methacrylates, ethacrylates and butacrylates. Polyamines specified are ethylene, propylene and butylene diamines, diethylene triamine, triethylene tetramine, tetraethylene pentamine, 1,3-diaminobutane, o-, m- and p-phenylene diamine, m- and p-toluene diamine, benzidine, and otolidine. The polyamide may have a viscosity of 5000-300,000 c.p.s. Epoxidation agents specified are: ethylene, propylene, butylene and styrene chlorohydrins, epichlorohydrin, glycerol mono- and di-chlorohydrins and the diglycidyl ethers of mono- and diethylene glycols, glycerol, pentaerythritol, resorcinol, pyrogallol and catechols. The epoxidation may be carried out in aqueous dispersion at 1-70‹ C. the initial pH being 7-13. In a particular embodiment the epoxidation agent may be added in two portions: the former being 35-75% of the whole. In this case the first addition is followed by heating at 10-70‹ C. and dilution and the second addition by heating at 90-100‹ C. In the two-stage method the epoxidation agent in the second addition may differ from that in the first. The product may be used to impart wet strength to paper.
Patent GB-1052333-A (GB)
IPC: B01J19/00
Abstract: 1,052,333. Automatic process control. BUNKER-RAMO CORPORATION. April 21, 1964 [May 2, 1963], No. 16516/64. Heading G3R. In a rotary kiln for producing portland cement, a liquid slurry or dust, is fed through a hopper 22 and gravity fed into a pre-heater 24, and subsequently or directly, to an inclined reaction chamber 26 rotated by a motor 28 driving a gearring 32. At the exit end of a kiln a fuel supply line 34 is jointed by a primary air supply line 36 to form a fuel-air mining chamber 38 which injects a high velocity flame into the reaction chamber. The heated gases are withdrawn by a suction fan 42 exhausting through a stack 44. Near the flame 40 the major chemical reactions take place and the feed partially liquefies and reacts to form clinker and drops onto a moving grate 46 where it is cooled by a secondary air stream from a fan 48. A plurality of monitors are positioned at the input to the kiln including a hopper feed rate detector 50, a fan speedsensor 52, exit gas temperature and pressure sensors 54, 56, excess oxygen 58, and the amount of carbon dioxide 59. A plurality of thermocouples 60 sense the feed temperature along the kiln and an optical pyrometer 62 senses the temperature of the burning zone. In the hood 66 the pressure is sensed by a detector 68 and the air temperature by a device 64. The grate 46 is provided with a pressure detector 70; a speed detector 72 and the cooling air flow by a detector 74. The instrumentation is employed in a control system, comprising an update section, wherein control parameters are modified in dependence on change in kiln characteristics i. e., refractory lining, an optimising section wherein desired operating values, determined by management objectives, i.e. throughput or optimum efficiency, are fed to a model-programmed digital computer, together with the measured data; the predicted kiln operating parameter from the computer are fed to a regulate section wherein further modification are effected to derive controller set points for the plant apparatus.
Patent GB-1052561-A (GB)
IPC: C22C19/00
Abstract: 1,052,561. Nickel based alloys. J.F. BALDWIN. July 1, 1965 [July 10, 1964], No.27915/65. Heading C7A. A nickel base alloy comprises:- the balance, apart from impurities, being nickel in an amount of at least 45%. Impurities disclosed are:-  Mn up to 1% Si up to 1% Fe up to 5% P up to 0À02% S up to 0À02% W up to 2À5% Nb up to 0À2% V a trace only and residual deoxidizers such as Ca, Mg or R.E. metals. Various heat-treatments are disclosed.
Patent GB-1053964-A (GB)
IPC: H03M1/14
Abstract: 1,053,964. Selective signalling systems. WAYNE-GEORGE CORPORATION. April 7, 1964 [May 9, 1963], No. 14369/64. Heading G4H. In a shaft-position digitizer, the least significant track of a coded scale 12 is sensed by a pair of photo-cells which are spaced apart by one quarter of the track increment to produce quadrature sinusoidal waveforms as disc 12 rotates. These waveforms are supplied to opposite corners of a bridge 52, the inverse waveforms being applied to the remaining two corners. In the embodiment shown, the bridge 52 has 32 taps, opposite pairs of which are connected to triggers FF1-FF16 to produce a complete sequence of output signals in combination as disc 12 rotates through one increment. A diode matrix 56 provides outputs 71 representing, in binary code, the " fine " position of the shaft to within 1/32, of an increment of the least significant track. The next track on scale 12 has 1/16 as many elements as the least significant track and is likewise sensed by a pair of spaced photo-cells to produce, by means of bridge 98, triggers F17-F24 and diode matrix 100, a 4-bit binary-coded signal representing the position of the shaft to within 1/16 of an increment on that track. The eleven remaining tracks are sensed by single photo-cells, so that the thirteen tracks altogether produce a 20-bit binary representation of the shaft position. The most significant bit derived from the outermost track is used to control the addition or subtraction of a fraction of the signals on leads 90-96 to or from the outputs of the photo-cells associated with the second track to produce a " leading " or " lagging " effect to avoid ambiguity.
Patent GB-1054022-A (GB)
IPC: G03B21/132
Abstract: 1,054,022. Pens for recording instruments. KOLLSMAN INSTRUMENT CORPORATION. April 25, 1963 [May 18, 1962], No. 17338/66. Divided out of 1,054,021. Heading B6P. [Also in Divisions G1 and G4] A pen 302 dispensing writing fluid from a reservoir 364 through a tube 365 extending through a hole in a cylinder 362 is used to draw a trace on a board with a matrix of wires embedded therein. Whenever the wires at the intersection nearest the pen are energized EMF's are induced in two mutually perpendicular coils 360, 361 inside the cylinder 362 and the resultant pulse is fed to a computer (see Division G4) to control a scriber in a plotting projector (see Specification 1,054,021, Division G1). A micro-switch 367 in the pen closes when writing pressure is applied to light a lamp on the board and to operate the projector. The writing fluid may be of non-smearing solvent erase type for use on a plastic epoxy board.
Patent GB-1229365-A (GB)
IPC: B60T1/00
Filed: 1969-11-19
Abstract: 1,229,365. Hydrostatic transmission control. FMC CORP. 19 Nov., 1969 [21 Nov., 1968], No. 56604/69. Heading F2D. Control of the pump in a tractor hydrostatic tranmission 48, e.g. comprising a variable displacement pump and a fixed displacement motor, is effected by turning a shaft 54 in opposite directions for forward and reverse, the shaft being turned by a foot pedal (24), Fig. 1 (not shown), acting through linkage 58 carrying a pin 108 connected to a lever 110 fast with the shaft, a pair of arms 118, 120 being freely mounted on the shaft and being interconnected by a tension spring 122 to urge them against a stop 74 and the pin 108 to return the shaft 54 to its central neutral position on releasing the pedal (24). The lever 110 carries a contact 133 of a switch SW2 to prevent starting of the tractor engine unless the transmission is in neutral. A second switch (SW1) in series with the switch SW2 prevents starting also unless a power takeoff (18) driven through V-belts (26) from the engine, is manually disengaged by moving the belt tensioning roller (32). A park lock 94 is manually engageable with a transmission output pinion 60 through an over-centre spring toggle arrangement 86-96 actuated by a shaft 80 when the transmission is in neutral. The shaft 80 also turns a lock hook 76 pivoted at 72 and having a slot 106 to receive the pin 108 when the transmission is in neutral so that the park brake may only be applied when the transmission is in neutral, and the transmission is then maintained in neutral until the park brake is disengaged. The wide mouth 132 of the slot 106 limits the possible pump displacement in forward and reverse.
Patent GB-1239112-A (GB)
IPC: B01D3/28
Filed: 1969-08-14
Abstract: 1,239,112. Evaporators; polymerization; gas-liquid absorption. WIEGAND APPARATEBAU G.m.b.H. 14 Aug., 1969 [15 Aug., 1968], No. 40746/69. Headings B1B and B1X. In order to evaporate a liquid, or carry out a liquid-gas absorption process or a chemical reaction such as the polymerization of a solution or emulsion, the liquid is fed to a tubular duct, which is helically or spirally coiled about one or more axes, while a stream of gas and/or vapour is passed through the duct so that the liquid flows down the internal wall of the duct in the form of a annular film and issues from the entire periphery at the end of the duct. The diameter of the helix should be 0.25 to 8 times the diameter of the duct, and the spacing of consecutive turns of the helix should be between 1.75 and 150 times the diameter of the helix. The duct may be surrounded by a heating-or a cooling-chamber whereby the temperature of the liquid may be controlled. The liquid is supplied at a rate dependent on the hydraulic diameter of the duct. The gas (vapour) is supplied at a rate dependent on the viscosity of the liquid. The Fig. shows an evaporator comprising a helical tube 1 inside a heating chamber 4. Liquid to be concentrated, e.g. an aqueous solution of glucose, is preheated and fed into tube 1 through valve 8 and pipe 7. At the same time, saturated steam flows into tube 1 from chamber 5 which is supplied with steam through valve 11 and pipe 10. As the solution flows down the internal wall of tube 1, evaporation of some of the water takes place. The concentrated solution and vapour enter separator 15; and the concentrated solution is withdrawn from chamber 19 by pump 21. The vapour flows through pipe 22 to condenser 23, which is evacuated by pump 26. Tube 1 may be made of stainless steel and lined with polytetrafluoroethylene. Instead of using a helical tube, the process may be carried out in a helical channel in a block of heat-conductive material. The sulphonation of olefins with SO 3  is referred to; also the nitration or halogenation of aromatic compounds and the halogenation of alkanes.
Patent GB-1239176-A (GB)
IPC: G01C19/18
Filed: 1970-01-01
Abstract: 1,239,176. Gyroscopic apparatus. SINGERGENERAL PRECISION Inc. Jan 1, 1970 [March 3, 1969], No.23/70. Heading G1C. A gyroscope comprising a hollow rotor 10 driven from an electric motor (not shown) by a shaft 12 through a universal joint in the form of a necked flexure rod 16 is provided with a stop limiting tilting movement of the rotor about the universal joint, the stop 20 comprising a circular plate 24 with a hub portion 22 mounted on the shaft 12, the plate having a circular flange 26 providing two circular knife edge contact portions 28, 30 which are arranged to contact an inner surface of the rotor 10 and of a flange 14 on the rotor simultaneously, so as to prevent loading on a flexure rod 16. On contacting the stop the knife edge portions will roll round the contacting surfaces on the rotor 10 without causing unwanted vibrations. The gyroscope may be enclosed in a gas-filled housing (not shown) and holes 32 are provided in the plate 24, so that the gas does not dampen the tilting movement of the rotor. By controlling the size of the holes the damping characteristics can be controlled.
Patent GB-1251928-A (GB)
IPC: B60C15/04
Filed: 1970-05-26
Abstract: 1,251,928. Making tyre beads; welding by pressure. BEKAERT S.A. N.V. 26 May, 1970, No. 25252/70. Headings B3A and B3R. A method of making a beadwire for a pneumatic tyre comprises butt welding the ends of a metal wire cable 1 made up of wires 3 twisted together with or without a central core wire or wires 2, heat treating the welded joint to relieve stresses and removing the weld burr by mechanical working. The cable is made of steel wire having a carbon content of from 0À60 to 0À85% by weight and has a rubber coating 4. Clamps 6 of the welding apparatus press the bared ends of the cable together at a pressure of between 0À1 to 0À4 kg./sq. mm. and an electric current is passed through the junction 7 and welds the ends together at a temperature about 1200‹ C. The heat treatment consists of heating the weld region to 850‹ C. followed by cooling. After removing the weld burr the connected ends of the cable are recoated with rubber. The bead wire is embedded in the moulded tyre and is surrounded by cord plies (Figs. 3 and 4, not shown).
Patent GB-1256552-A (GB)
IPC: C07C7/171
Filed: 1969-09-22
Abstract: 1,256,552. Separating tertiary amylenes. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 22 Sept., 1969 [23 Sept., 1968], No. 46518/69. Heading C5E. Tertiary amylenes (2-methyl butene-1 and 2- methyl butene-2) are separated from admixture with other C 5  hydrocarbons by contact with aqueous sulphuric acid in the presence of a minor amount of " fat acid " as emulsifier, the hydrocarbon feedstock containing at most 20 wt. per cent tertiary amylenes. The " fat acid " is the product obtained by contacting H 2 SO 4  and tertiary amylenes. The concentration of the H 2 SO 4  may be 55-70% by wt. and 0À01-5% by vol. of the " fat acid " emulsifier may be used
Patent GB-1264104-A (GB)
IPC: B21B35/12
Filed: 1970-04-07
Abstract: 1,264,104. Rolling mills. SOC. NOUVELLE SPIDEM. 7 April, 1970 [11 April, 1969], No. 16528/70. Heading B3M.  A rolling mill, which incorporates a housing whose upper part can be pivoted upwardly to free its jammed rolls, is provided with gears for coupling the rolls together. Gear-wheels 19 and 19a which drivingly connect the rolls are associated with additional coaxial gears 119 and 119a. The additional gears have larger teeth than normal so that they remain in mesh when the housing part is pivoted. Thus the driving gears 19 and 19a are replaced in mesh when the housing is closed again. The additional gears are connected resiliently to the associated gears 19 and 19a. The connection may incorporate flexible pins having frusto-conical portions, or they may be of spring or hydraulic type.
Patent GB-1264463-A (GB)
IPC: A24C5/32
Filed: 1968-03-01
Abstract: 1,264,463. Cigarette machines. HAUNI-WERKE KORBER & CO. K. G. 25 Feb., 1969 [1 March, 1968; 3 Dec., 1968], Nos. 10047/68 and 57341/68]. Heading A2C. Cigarettes or similar rod-like articles, such as cigars or filter rods, fed axially from a cutting station 1 along a V-grooved guide 2 to grooves 4 in a rotary drum 6 and subsequently deposited alternately in two rows 3, 3 on a conveyor belt 37 are braked in the grooves and then brought pneumatically to positions corresponding to the rows. As shown, each groove has a suction braking duct 14 and a suction positioning duct 16, the arrangement being such that a cigarette is brought to rest over a duct 14 and then drawn back by suction in a duct 16 until it comes to rest just overlying the duct 16, as shown in the lower part of the figure. The application of suction to the ducts is controlled by valving means constituted by engagement of the end of the drum with arcuate grooves 18, 36 in a fixed end plate 23, the groove 18 being formed in a ring 19 which is adjustably secured to the plate. A fixed cover 7 surrounds that part of the drum over which the suction operations take place so that cigarettes are sucked into the grooves from the guide 2; they may be assisted by an eccentric disc (not shown). A small degree of suction may be applied to the ducts 16 to provide preliminary braking. The positioning of a cigarette, after interruption of the suction in the duct 14 and application of full suction in the duct 16, may be assisted by compressed air directed along the groove 4 by a nozzle (not shown) in the plate 23. Modifications include the following features; cigarettes encounter the braking ducts first and are then moved on to the positioning ducts, a series of holes spaced along each groove takes the place of the single braking duct and the cover 7 is perforated over the braking area, and braking is effected by a spring blade instead of by suction.
Patent GB-1265815-A (GB)
IPC: G03G15/08
Filed: 1969-03-13
Abstract: 1,265,815. Developing electrostatic images. EASTMAN KODAK CO. March 13, 1969 [March 13, 1968], No. 13311/69. Heading G2H. An electro-graphic cascade developing apparatus has a plate 2 with an inclined stepped surface 3 for returning developer to a feed position above a surface 1 bearing an image to be developed. The surface 3 is reciprocated by an oscillating driver 6 to propel the developer upwardly, or is given an orbital motion by eccentric drives (15) and (16), Fig. 3 (not shown). The plate 2 may be electrically biased to serve as a development electrode.
Patent GB-1289701-A (GB)
IPC: H02G3/32
Filed: 1969-11-28
Abstract: 1289701 Semi-conductor devices MITSUBISHI DENKI KK 28 Nov 1969 [28 Nov 1968] 58226/69 Heading H1K A semi-conductor device comprising a wafer of a semi-conductor material such as Ge, Si, GaP or Ga 1-x Al x As(x#0À5) having in its conductive band two valleys of different energy, is operated in such a way that the electron and hole concentrations in the active region of the device are approximately equal, producing a negative resistance characteristic when a sufficiently large electric field is applied. The essential energy band condition is that the wave vector of the valence band maximum shall be equal to that of the higher energy valley in the conduction band. The electron/hole equality occurs in intrinsic material, and it may be produced in non-intrinsic material by suitable heating or irradiation with light. In each of these eases it is merely necessary to provide a uniform wafer of the material having two ohmic electrodes. Fig. 4 illustrates an alternative method of producing approximate carrier-equality by the provision of an N + type Sb, P or As doped region 24 in one of two P+ + type (#10<SP>18</SP> atoms/ cm.<SP>3</SP>) end regions 22 in a P type (#10<SP>15</SP> atoms/ cm.<SP>3</SP>) B or In doped Ge wafer 20. A suitable potential applied between Al electrodes 28, 30 causes electrons to be injected into the main P type wafer 20, thereby producing near equality of electrons and holes, resulting in a negative resistance characteristic between electrodes 26 and 28. The conductivity types may be reversed. The device may oscillate analogously to a Gunn effect device.
Patent GB-1290495-A (GB)
IPC: C21C1/02
Filed: 1969-12-05
Abstract: 1290495 Desulphurizing iron; fluxes AIKOH CO Ltd 5 Dec 1969 [13 Aug 1969] 59573/69 Heading C7D and C7M The iron is treated with moulded blocks of a composition containing in percentage by weight soda ash 60-85 portland cement 3-25 water glass 0-10 borax 0-5  sodium chloride 0-5 calcium-containing substance 0-10 carbonaceous matter 0-5 iron powder 0-10 water 7-15 the blocks having an apparent specific gravity of 1À3 to 2À5 and being provided with grooves or holes extending through them. The calcium -containing substance may be calcium oxide, hydroxide, carbonate, chloride, fluoride or mixtures of these, while the carbonaceous matter may be coke dust, graphite powder or charcoal powder. Each dimension of the block is preferably 3 to 500 mm.
Patent GB-1290566-A (GB)
IPC: G01K17/00
Filed: 1970-08-20
Abstract: 1290566 Pyroelectric device CANADA DEFENCE MINISTER OF 20 Aug 1970 [29 Aug 1969] 40228/70 Heading G1A A pyroelectric device for measuring the energy in high powered pulsed infrared radiation comprises a rectangular tubular portion 30 having a polished inner surface provided at one end with a diverging sodium chloride lens 34 and at the other end with a pyroelectric device comprising, for example, a thin pyroelectric crystal 39 having a metallic 40 coating on both sides, the crystal 39 being mounted on a heat sink 38 and also provided with a layer of lamp black 41 or black paint. Electrodes 42 and 43 are affixed to metallic coating 40 and heat sink 38 for correction to external voltage measuring circuitry such as a peak reading volts meter or an oscilloscope. The radiation energy is intended to pass through lens 34 and that which does not immediately impinge in black coating 41 or which is reradiated by this coating will be reflected from the polished internal surfaces of the tube 30 and the end-plate 31 until it strikes and is absorbed by the coating 41.
Patent GB-1290890-A (GB)
IPC: H01R12/50
Filed: 1969-12-19
Abstract: 1290890 Two part couplings F R BONHOMME 19 Dec 1969 [20 Dec 1968] 61873/69 Addition to 1126390 Heading H2E An electrical connector of the kind described in the parent Specification comprising an insulating housing 1 and a plurality of deformable electrical contacts 7, each in the form of several resilient metal wire loops which bear against the walls of the housing and whose ends are crimped in a metal sleeve 9, is modified for use with a flexible tape cable 10 which is clamped by a bar 14 fixed by screws 15 or rivets. In further embodiments the contact can be in the form of a double loop interconnecting two integral housings, back to back, so that connection can be made between two tape cables or a tape cable and a printed circuit board (Figs. 8 and 7, not shown); or the sleeve 9 may be bent through 90 degrees and soldered to printed wiring on a rigid board, a marginal portion of which forms the lower wall of the housing 1 (Fig. 6, not shown).
Patent GB-1295560-A (GB)
IPC: G21C5/16
Filed: 1971-10-15
Abstract: 1295560 Reactors COMMISSARIAT A L'ENERGIE ATOMIQUE 15 Oct 1971 [15 Oct 1970] 48121/71 Heading G6C In a high temperature, helium cooled, nuclear reactor, the core is formed of columns of prismatic elements having the same geometrical module. The core is surrounded by a reflector and a thermal shield formed of similar elements. The core, reflector and shield rests on an array of supporting posts which are carried by a bed plate formed of elements having the same geometric module as that core. The reactor, together with heat exchangers, is mounted within a prestressed concrete pressure vessel. The elements may have an hexagonal crosssection and are interlocked by the keys 13, 14 and 15.